OPINION 1
Joseph Costello (Costello) appeals from the Order of the Commonwealth Court, which vacated a decision of the Workers’ Compensation Appeal Board (Board) and reinstated the Board’s initial decision in which the Board modified a referee’s 2 decision and suspended Costello’s benefits. For the reasons discussed in this Opinion, we reverse.
FACTS AND PROCEDURAL HISTORY
On October 29, 1988, Costello suffered a work-related back injury while working as a pipe fitter for Landmark Constructors, Inc. (Landmark). After that, Landmark began paying Costello workers’ compensation benefits for total disability. Landmark filed a Termination Petition in July of 1991, alleging that Costello had fully recovered from his work-related injury. Costello filed an Answer denying all material averments in Landmark’s Petition.
*621 At hearings on the matter, Landmark presented a medical expert who testified that Costello could return to his job as a pipe fitter without restriction. Landmark offered no testimony regarding job availability. The referee accepted as credible the testimony of Landmark’s medical expert and found Costello’s evidence as not credible. The referee granted Landmark’s Termination Petition concluding that Landmark had produced substantial, competent evidence to establish that Costello’s work-related disability had ceased as of February 18,1991.
Costello appealed to the Board, which modified the referee’s decision from a termination to a suspension. The Board concluded that because Landmark’s medical expert only testified that Costello could return to work without limitations, not that Costello had fully recovered from his work-related injury, the evidence accepted as credible by the referee supported a suspension of benefits, not a termination.
Costello filed an appeal with the Commonwealth Court and a Petition for Rehearing with the Board. The Board granted Costello’s request for rehearing; and the Commonwealth Court remanded the matter to the Board for rehearing and relinquished jurisdiction. After rehearing, the Board departed from its initial determination. In its second decision, the Board held that although the record supported a finding that Costello could return to his pre-injury position without restriction, a suspension of benefits was not proper because Landmark failed to make any showing of job availability in accordance with
Kachinski v. Workmen’s Compensation Appeal Bd. (Vepco Constr. Co.),
Landmark appealed the Board’s denial of its Petition to the Commonwealth Court. The Commonwealth Court first noted that the record did not support a termination of benefits because Landmark’s medical expert failed to testify that Costello was fully recovered from his work-related injuries. Nevertheless, the majority of a split panel of the Court ultimately concluded that Landmark was entitled to a suspension of benefits despite the lack of evidence as to job availability. Relying on its decision in
Trumbull v. Workmen’s Compensa
*622
tion Appeal Bd. (Helen Mining Co.),
Judge McGinley dissented from the majority Opinion because he believed that Trumbull and Harle were inapplicable. He opined that the majority failed to accord the proper credence to our decision in Kachinski and should have required Landmark to establish job availability before suspending Costello’s benefits.
Costello sought discretionary review of the decision of the Commonwealth Court, asserting that the court erred in suspending his benefits -without requiring a showing of job availability.
DISCUSSION
We granted allocatur in this case to explain the burden placed on an employer seeking to suspend the workers’ compensation benefits of an employee who, though not fully recovered from his or her work-related injuries, is medically able to return to his or her pre-injury position -without restriction. Because the Commonwealth Court improperly suspended Costello’s workers’ compensation benefits without requiring a showing of job availability, we reverse.
Appellate review of a workers’ compensation matter is limited to determining whether there has been a constitutional violation, an error of law, a violation of Board procedure and whether necessary findings of fact are supported by substantial evidence.
Waugh v. Workmen’s Compensation Appeal
*623
Bd.,
Our examination here must commence with our seminal decision in Kachinski, where we assessed the burden of the employer to prove job availability in seeking a modification of an employee’s workers’ compensation benefits. In Kachinski, the employee sustained a work-related injury and received benefits. Sometime later, the employer filed a petition to modify the employee’s benefits arguing that the employee had recovered from his work-related injuries sufficiently to return to gainful employment. The employer also alleged that work complying with the employee’s remaining physical injuries was made available to him.
The unsettled question presented in
Kachinski
was whether an employer could establish job availability simply by establishing that work existed in the marketplace or whether the employer was required to make the heightened demonstration that a job was available to the employee. At the time this Court addressed
Kachinski,
it was well established that an employer seeking modification of an employee’s benefits had some obligation to establish job availability.
See Barrett v. Otis Elevator Co.,
*624
The requirement of producing evidence of actual job availability, now an indispensable part of this Commonwealth’s workers’ compensation law, is a concept not set forth explicitly in the Act, but developed as the product of judicial interpretation of the Act. As we discussed in
Kachinski,
Section 413 of the Act, 77 P.S. § 772, which governs the procedure for modifying benefits, gives no clear guidance as to what is required to warrant a modification of benefits.
A workers’ compensation judge designated by the department may, at any time, modify, reinstate, suspend, or terminate a notice of compensation payable, an original or supplemental agreement or an award of the department or its workers’ compensation judge, upon petition filed by either party with the department, upon proof that the disability of an injured employe has increased, decreased, recurred or has temporarily or finally ceased.
(Emphasis added). Although a party seeking to change the status of benefits must establish that there has been a change in disability, the Act does not convey how this can be accomplished. Seeking to clarify the employer’s burden under the Act, this Court, in deciding Kachinski, looked to the development of the job availability requirement in Barrett and Petrone and construed Section 413 to require an employer seeking modification of benefits to demonstrate actual job availability.
*625
To read Section 413 to require a showing of actual job availability is logical given the concept of “disability” in the Act. This Court has defined the term “disability” in workers’ compensation law as the loss of earning power attributable to the work-related injury.
See Barde v. Workmen’s Compensation Appeal Bd. (Trans-Bridge Lines, Inc.),
Interpreting Section 413 to require a showing of job availability is also consistent with the salutary purpose of the Act. As we stated in Kachinski:
A recipient of workmen’s compensation is by definition a person who has been injured during the operation of the employer’s business. Although the employer is not personally responsible for an employee’s injury, the employer, as the owner of the production process, nonetheless bears a responsibility to those who are injured while operating it. That responsibility, though not without its limits, requires at *626 a minimum some effort on the part of the employer to make the injured employee whole.
Our decision in Kachinski also recognized that the employer’s obligation is not without limits. The Act places upon the employee a reciprocal obligation to make his or her best efforts to return to the workforce. Thus, employees must cooperate with employers’ attempts to return them to the workforce by making themselves available for appropriate employment, whether with the employer or with a substitute employer. 4
Since our decision in
Kachinski,
this Court has done nothing to undermine the guidelines cited in that decision. In fact, in a recent decision addressing the
Kachinski
guidelines,
Joyce v. Workmen’s Compensation Appeal Bd. (Ogden/Allied Maintenance),
Nevertheless, this is not to say that we unrelentingly apply
Kachinski
in circumstances where the facts of a given case have made the application of the guidelines inequitable. In a limited number of unique factual circumstances, this Court has dispensed with a strict application of
Kachinski
in deference to broader policy concerns. One such case was
Banic,
in which the employer sought to suspend benefits based upon the employee’s incarceration. This Court allowed for the suspension of benefits for the period of the employee’s incarceration without requiring a showing of job availability. In disposing of that case, we noted that
Kachinski
should not be applied rigidly “where the facts demonstrate that the changed circumstances of a claimant’s disability would make the showing of all four
Kachinski
factors irrelevant and fruitless.”
Banic,
With this background in mind, we now turn to the present matter. Clearly, the Commonwealth Court’s decision is at *628 odds with the well-settled law of Kachinski. The Commonwealth Court concluded that “[w]here a claimant is capable of returning to his or her pre-injury job without restrictions, employer is entitled to a suspension of benefits even though employer has not established job availability.” Costello, slip op. at 4. This holding is irreconcilable with our decision in Kachinski and is inconsistent with the remedial purpose of the Act.
The Commonwealth Court consistently has applied the
Kachinski
guidelines where employers have sought to modify benefits.
See Republic Seafood, Inc. v. Workmen’s Compensation Appeal Bd. (Bundy),
The Commonwealth Court’s flawed analysis appears to proceed from the inaccurate premise that our decision in Harle altered the prevailing Kachinski guidelines. An examination of our decision in Harle highlights the deficiency of this premise. 5 While working as a pressman, John W. Harle *629 (Harle) sustained work-related injuries to his thumb, for which employer paid him benefits. Despite some residual impairment attributable to the work-related injuries, he eventually was cleared to return to his pre-injury job. Harle’s pre-injury job was not available because his employer was no longer a going concern, so Harle, on his own initiative, obtained employment with another employer performing the identical duties he had performed for his previous employer. Although his duties were identical, Harle received a reduced wage in his new employment.
Harle’s former employer filed a termination petition alleging that Harle’s disability had ceased. After hearings, the referee granted employer’s termination petition, finding that employer’s medical expert had testified credibly “that claimant’s disability relative to the injury ... has ceased.”
Harle,
On appeal, the Commonwealth Court found that a termination of benefits was improper because the employer’s medical expert testified that Harle continued to suffer residual work-related physical injuries. The Commonwealth Court then addressed the corollary issue of whether the employer was entitled to some sort of relief short of termination. In the end, the Commonwealth Court opined that the employer was entitled to a modification of benefits to partial disability because Harle had returned to gainful employment. Consistent with this rationale, the Commonwealth Court remanded the matter to the referee for a calculation of partial disability benefits based on the difference between Harle’s pre-injury wages and his current wages. 6
*630
The employer’s obligation to establish job availability under the
Kachinski
guidelines was not an issue in the Commonwealth Court’s decision in
Harle.
The Commonwealth Court acknowledged the employer’s obligation to establish job availability in seeking a modification of benefits, but found that Harle admitted that there was a job available by virtue of his return to employment. The Commonwealth Court did not need to focus on job availability because Harle’s return to work “obviated the need to produce evidence of job availability.”
Harle,
This Court granted review in Harle to address the narrow issue of whether the Commonwealth Court erred in awarding partial disability benefits even though Harle’s lower wages obviously were attributable to factors other than the work-related injury. This Court, like the Commonwealth Court, did not need to focus on the job availability requirement of Kachinski because job availability was not at issue. The very distinct issue before the Court was whether a residually injured employee who returns to identical employment should receive partial disability benefits because his wages are less in his current employment. In addressing this issue, we examined the provisions of the Act governing benefits for partial disability and the reinstatement of suspended benefits. Moreover, we acknowledged that in some instances, a residually injured employee’s post-injury wages would not match his or her pre-injury wages for reasons unrelated to the work injury. In Harle, the employee’s lost wages were not attributable to his work-related injury because he was performing an identical job. Thus, because Harle’s loss of earnings was a result of factors other than his work injury, i.e., the economic reality that his previous employer went out of business, we held that awarding partial disability benefits under the facts of that case would be improper.
The holding of Harle is founded on the employee’s return to a position identical to his pre-injury position. To read Harle to allow for the modification of benefits simply upon a showing that an employee can return to his previous position without *631 restriction is inappropriate. 7 Demonstrating that an employee can return to his or her pre-injury position is quite different from demonstrating that an employee did return to a position identical to his or her pre-injury position. The second showing establishes actual job availability, but the first does not.
Furthermore, to read Harle as allowing for modification of benefits simply upon a showing that an employee can return to his previous position without restriction would obliterate our seminal decision in Kackinslci and would undermine the employer’s obligation under the Act. The Harle decision did nothing to affect the Kachinski guidelines, but merely recognized that the employer need not show job availability when the employee actually returns to work. In addition, permitting an employer to suspend benefits simply upon a showing that an employee can return to his or her previous job without restriction would relieve the employer of any obligation to reintroduce an injured worker into the workforce, contrary to the remedial purpose of the Act. 8
*632 The present matter is governed by the well-settled decision of this Court in Kachinski, and the rationale of Hark, has no application. Pursuant to our decision in Kachinski, an employer seeking to modify the benefits of a residually injured employee must produce evidence of job availability. Because Landmark failed to present any evidence of job availability, it has failed to carry its burden of proof to warrant a suspension.
CONCLUSION
For these reasons, we reverse the decision of the Commonwealth Court.
. This Opinion was filed simultaneously with our Opinion in
Schneider, Inc. v. Workers’ Compensation Appeal Bd.
(Bey),-Pa.-,
Notes
. Referees have been redesignated as Workers' Compensation Judges by amendment to the Workers’ Compensation Act (Act), Act of June 2, 1915, P.L. 736, as amended, 77 P.S. §§ 1-1041.4, 2501-2626. See 77 P.S. § 701.
. In addition to resolving the unsettled question of precisely what was required to show job availability, the Kachinski Court also laid down *624 the following guidelines to govern employers’ petitions seeking to modify an employee’s benefits:
1. The employer who seeks to modify a claimant’s benefits on the basis that he has recovered some or all of his ability must first produce medical evidence of a change in condition.
2. The employer must then produce evidence of a referral (or referrals) to a then open job (or jobs), which fits in the occupational category for which the claimant has been given medical clearance, e.g., light work, sedentary work, etc.
3. The claimant must then demonstrate that he has in good faith followed through on the job referral(s).
4. If the referral fails to result in a job then claimant’s benefits should continue.
. As we explained in Kachinski, the injured employee has no affirmative duty to seek alternative employment on his or her own initiative:
To impose on the injured party the duty to find alternative work under pain of foregoing the compensation to which he has become entitled is to condition one’s receipt of compensation on something other than the injury itself: a concept far removed from the salutary purpose of workmen's compensation to provide relief to injuries caused in the workplace.
. It is also telling that we have continued to adhere to the Kachinski guidelines after Harle, as evidenced by our decision in Joyce.
. Pursuant to Section 306(b) of the Act, 77 P.S. § 512, an employer must pay a partially disabled employee (generally, a residually injured employee who returns to some level of work at a reduced wage) sixty-six and two-thirds per cent of the difference between his or her preinjury wage and the reduced wage.
. The Commonwealth Court’s decision in
Trumbull
misreads
Harle.
In
Trumbull,
the Commonwealth Court, relying on
Harle,
concluded that: "the Supreme Court has held that an employer is entitled to [a] suspension of a claimant’s benefits when the claimant is capable of returning to his or her time-of-injury job with residual disability even if the employer has not shown job availability.”
Trumbull,
. We see no difference between the situation where an employee can return to his or her previous position without restriction and the instance where an employee can return to a modified position or other alternative employment. In both cases, the employer must produce a suitable job. Thus, in the case where the employer establishes that an employee can return to his or her pre-injuiy position, the employer must also demonstrate that the pre-injury position is available to the employee. Without requiring this showing, it is possible that an employer seeking to suspend benefits would simply demonstrate that a residually injured employee could return to his or her pre-injury position, but never take any steps to reintroduce the employee into the workplace. Also, creating a distinction between residually injured employees who can return to their previous positions without restric *632 tion and those employees who can return to modified or alternative employment would lead to an absurd result: the employees who merely need the employer to give them their old jobs would be in a less favorable position than the employees who need the employer to take affirmative steps to find or create jobs for them. Obviously, the spirit of the Act would not accommodate such an inequity.
